JPH10201960A - Hair for doll and dolls using it - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable children to enjoy themselves by easily changing a hair style by providing a function of applying external stress to the hair for a doll to be freely changed in the temperature range from the glass transition temperature of a thermoplastic polymer to the melting point. SOLUTION: Hair 2 for doll is formed by a filament with an outside diameter 0.2-3mm, which is formed by fusing thermoplastic resin A and one or more kinds of thermoplastic polymer B, the glass transition temperature of which ranges from 0-70 deg.C at the ratio of A/B=95/5-20/80 (weight ratio) to be united in a body. The hair has such as function that external stress is applied in the temperature range from the temperature near the glass transmission temperature of the thermoplastic polyer B to the melting point to be freely deformed into a form according to the stress and fixed in a form deformed in the temperature area less than the glass transition point. Accordingly, the hair can be easily deformed into an arbitrary form in the living temperature range by selecting a thermoplastic polymer B in the glass transition temperature range.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to doll hair and dolls using the same. More specifically, the present invention relates to doll hair which can be easily deformed into an arbitrary shape by applying an external stress in a specific temperature range and can fix the deformed shape in a specific temperature range, and dolls using the same. .

[0002]

2. Description of the Related Art Conventionally, as a hair for a doll, a thin wire-shaped shape-memory alloy has been applied (Japanese Utility Model Application Laid-Open No. 58-79991) or a shape-memory resin has been applied (Japanese Utility Model Application Laid-Open No. 2-79).
141498).

[0003]

In the above-mentioned conventional doll hair, the hairstyle can be freely changed,
Moreover, the original shape can be restored by a simple heating means such as a hair dryer or hot water. However, since the doll hair generally has a shape and properties similar to actual hair, that is, hair having the same thickness, suppleness, touch, and luster as hair, individual hairs are compared. The diameter of the hair is small and the number of hairs implanted in the dolls is large. Therefore, when the infant deforms the hair, the hair is not entangled or lacks the flexibility to take care of the hair, so that it cannot be easily played. . Therefore, the present invention is intended to be used at room temperature
In a temperature range of 0 ° C. or less, preferably in a temperature range of 30 ° C. to 60 ° C., the shape of the hair can be easily deformed by simple means such as touch, a hair dryer, hot water, and the deformed state. Can be fixed by cooling the hair,
Also, if necessary, the shape of the fixed hair can be restored to the original state, or it can be deformed to another shape, such as repeated deformation,
An object of the present invention is to provide doll hair and dolls using the same, which have a restoring function and endurance, and which can be easily deformed and played even by an infant or the like even in the case of an infant.

[0004]

According to the present invention, a thermoplastic resin (A) and one or more thermoplastic polymers (B) having a glass transition temperature in the range of 0 ° C. or more and 70 ° C. or less,
(A) / (B) = 95/5 to 20/80 (weight ratio) fused and integrated at an outer diameter of 0.2 mm to 3 mm
By applying an external stress in a temperature range from a temperature close to the glass transition temperature of the thermoplastic polymer (B) to a temperature lower than the melting point of the thermoplastic polymer (B), the glass can be deformed into a shape adapted to the stress. A doll hair having a function of being fixed to the deformed shape in a temperature range of less than is required. Further, it is required that the reversible thermochromic microcapsule pigment is contained in the doll hair in a dispersed state, and that the doll hair is implanted in dolls.

The thermoplastic resin (A) includes polyamide resins (6-nylon, 6,6 nylon, 12-nylon, 6,9 nylon, 612 nylon, 6-6,6 copolymer nylon, 6-12 nylon). Polymerized nylon, 6-6,6-
Polyester resin such as 12-copolymer nylon, 6,9-12-copolymer nylon), polyethylene terephthalate, polybutylene terephthalate, etc., acrylonitrile-
Styrene copolymer resin, acrylonitrile-butadiene-
Styrene resin, polycarbonate resin, vinyl chloride-vinyl chloride copolymer, copolymerized acrylonitrile resin,
Polyurethane-based thermoplastic elastomers, polyamide-based thermoplastic elastomers such as polyamide-polyether block copolymer resins, styrene-based thermoplastic elastomers such as styrene-butadiene block copolymer resins, and polyolefin-based polymers such as polypropylene-ethylene propylene rubber block copolymer resins. Examples thereof include polymers selected from thermoplastic elastomers, polybutadiene-based thermoplastic elastomers, polyester-based thermoplastic elastomers, and thermoplastic elastomers such as ethylene-vinyl acetate-based copolymers. Among the above-mentioned resins, general-purpose resins having a fiber-forming property and having a melting point or softening point of 100 ° C. or more are effective because they maintain proper rigidity as a base resin and contribute to shape retention.

Further, in order to maintain the initial supple flexibility for a long period of time, it is desirable to apply the thermoplastic elastomer. By applying the elastomer, it is possible to prevent the molded article from becoming soft and hardened over time.

As the thermoplastic polymer (B), saturated polyester resin, acrylate resin, methacrylate resin, vinyl acetate resin, polyamide resin, epoxy resin (uncured), hydrocarbon resin, soft vinyl chloride resin , Ethylene vinyl acetate-copolymer resin, vinyl chloride-
Examples thereof include a vinyl acetate copolymer resin, a vinyl chloride-acryl copolymer resin, a styrene resin, and an acryl-styrene copolymer resin. Among the thermoplastic polymers (B), the glass transition temperature is 0 ° C or higher and 70 ° C or lower, preferably 5 ° C to 65 ° C, more preferably 20 ° C to 65 ° C,
More preferably, those having a temperature of 30 ° C. to 50 ° C. are effective, and among them, a saturated polyester resin, an acrylic resin,
A vinyl chloride-vinyl acetate copolymer resin, a styrene resin and the like are preferable.

By selecting the thermoplastic polymer (B) having the above glass transition temperature range, it is possible to feel or touch various hair deforming jigs at a temperature in the living temperature range or a temperature range in the vicinity thereof, and By applying the stress deforming means, it is possible to easily deform the hair into an arbitrary shape, and has a function of maintaining the deformed shape by cooling, so that an infant or the like can easily change the shape of the hair and play.

The above-mentioned fusion of the thermoplastic resin (A) and the thermoplastic polymer (B) is carried out by melt-blending the thermoplastic resin (A) and the thermoplastic polymer (B). And a core / sheath type in which the thermoplastic polymer (B) forms a core portion and the thermoplastic resin (A) is wound around and joined around the core portion, or the (A) and (B) are joined in parallel. And composite fiber forms such as a bonded type.

Here, in the form in which the filament is melt-blended, the thermoplastic polymer (B) is selected from polymers having a different chemical structure from the thermoplastic resin (A);
The function of the present invention is effectively exhibited when the thermoplastic polymer (B) is in a dispersed state or a state in which dispersion and compatibility are mixed. In the case of a combination of resins having the same chemical structure, that is, a combination of resins of the same quality, a homogeneous compatible solution is formed, and the viscoelastic properties at or above the glass transition temperature of the thermoplastic resin (B) are:
Since it is expressed as it is without being properly controlled by the thermoplastic resin (A), it tends to stick to each other when the formed filaments are left in an overlapped state, etc. On the other hand, the temperature is lower than the glass transition temperature. The fixing function in the above temperature range is also relatively reduced.

The blending ratio of the thermoplastic resin (A) and the thermoplastic polymer (B) is A / B = 95/5 to 20 /
80 (weight ratio) is effective, preferably 90/10
５０50/50, and the viscosity increases as the weight of the thermoplastic polymer (B) increases.
Viscosity is too high to cause stickiness, and if the molded bodies are left in close contact with each other, problems such as sticking will occur, while 5% by weight
When the system is less than the above, the effect due to the decrease in the flexural modulus during the deformation treatment is insufficient, and the viscoelasticity is not sufficiently exhibited, so that the desired deformability is unlikely to occur. Here, (A) and (B)
Are not single and may be used in combination.

The thermoplastic resin (A) maintains its properties even when it has transitioned to a viscoelastic state at a temperature equal to or higher than the glass transition temperature of the thermoplastic polymer (B). It is suppressed and contributes to avoiding troubles due to sticking at the time of close contact between the molded bodies.

In the above structure, when the thermoplastic resin (A) is a polyamide elastomer and the thermoplastic polymer (B) is a saturated polyester resin having a glass transition temperature of 0 ° C. to 50 ° C., the weight ratio is as follows: Polyamide-based elastomer / saturated polyester resin = 95 / 5-20 / 8
0 (weight ratio), preferably the range of polyamide-based elastomer / saturated polyester resin = 80 / 20-30 / 70 (weight ratio), more preferably 50 / 50-70 / 30 (weight ratio) is effective. . By specifying the content in the above range, the high strength and tactile sensation of the polyamide itself are properly expressed, and the desired deformation-fixing function is effectively expressed. Furthermore, the above-mentioned deformation-fixing function is stably maintained over time.

In the above structure, the thermoplastic polymer (B) has a relatively rigid property in a temperature range below the glass transition temperature, but has a viscoelastic property above the glass transition temperature. As a result, the flexural modulus decreases, and the rigidity and flexural modulus of the thermoplastic polymer (B), which is originally rigid, relatively decrease, and flexibility to an arbitrary shape is obtained by external stress. The deformed shape returns to rigidity and is fixed in a temperature range equal to or lower than the glass transition temperature.

As described above, the thermoplastic resin (A)
The unification by the combination of the thermoplastic polymer (B) having a specific glass transition temperature enables the thermoplastic resin (A) or the thermoplastic polymer (B) to be deformed in a specific temperature range which cannot be exhibited by each unit, It has a function of fixing the shape deformed in the temperature range in a specific temperature range, and the above-mentioned deformation-fixability can be easily achieved by a temperature in a living temperature range or daily heating and cooling means, and further, the shaping is performed. The present invention provides a doll's hair having durability that can withstand repeated use, such that the broken hair can be released in a temperature range equal to or higher than the glass transition temperature and deformed and fixed in another arbitrary shape.

The outer diameter of the monofilament of the hair for a doll is 0.2 to 3.0 mm, more preferably 0.5 to 2 mm.
Range. Since the diameter of less than 0.2 mm is too thin, the hair is easily entangled with each other when the shape is changed, and it is necessary to implant a large number of hairs on the doll. In addition, when hot or cold water is used as a simple heating or cooling means, moisture is easily retained between hairs, so that it is difficult to dry, and it is not suitable for use by infants and the like. On the other hand, 3mm
Beyond that, the hair becomes too thick, making it difficult to show the properties of the hair.

The above-mentioned filaments are produced in a monofilament form or a multifilament form by melt spinning using a melt spinning apparatus. Here, the cross section of the monofilament is not limited to a circular shape,
Molds and other irregular shapes are also effective, and are appropriately selected according to tactile sensation, bulkiness, curl workability, and the like.

The above-mentioned hair for a doll can be implanted into a doll or an animal toy as a doll, and specifically, appropriate parts such as the head, face, body, limbs, etc. of the doll, and animal toys For example, when the outer diameter of the hair is relatively small, such as 0.2 to 0.5 mm, the hair is implanted with a flocking sewing machine or the like. A method of fixing the ends of the hair by using a plurality of fixing pieces that can be bundled, and fixing the fixing pieces to the portion of the doll where the hair is to be planted is used. The outer diameter of the hair is 0.5
For 1.5 mm, a part of the hair is fixed using a fixing piece capable of bundling a plurality of the hairs, and the fixing piece is fixed to a part of the doll where the hair is transplanted, or between metal wires. A method in which the hair is interposed, the metal wire is twisted and the hair is fixed to the metal wire, and the metal wire is fixed to the portion of the doll where the hair is implanted. Further, the outer diameter of the hair is 1.
When the hair has a length of 0 to 3.0 mm, preferably 1.5 to 3.0 mm, the ends of the hair are fixed using a fixing piece capable of bundling a plurality of the hairs, and the fixing piece is used for planting dolls. Method of fixing to the part to be done, intervening hair between metal wires,
The hair is fixed to the metal wire by twisting the metal wire, and in addition to the method of fixing the metal wire to the portion of the doll where the hair is implanted,
There is a method of integrally molding the doll with the head or scalp of the doll.

The raw material resin forming the filament
Colored filaments can be formed by blending and molding 0.05 to 1.0 g of a general pigment, 1 to 20 g of a fluorescent pigment, 10 to 100 g of a microcapsule pigment, etc. per kg.

Further, conventionally used light stabilizers are generally selected from ultraviolet absorbers, antioxidants, antioxidants, singlet oxygen quenchers, ozone decolorizers, visible light absorbers, and infrared absorbers. A light stabilizer can be appropriately blended in the raw material resin to form a filament, or a light stabilizer layer containing a light stabilizer in a fixing agent can be provided on the surface.

In addition, various conventional plasticizers, for example,
1 to 30% by weight of phthalic acid, aliphatic dibasic acid ester, phosphoric acid ester, epoxy, phenol, trimellitic acid, etc. is blended to lower the deformable temperature or impart flexibility. can do.

Further, in order to improve workability, physical properties, etc.,
Calcium carbonate, magnesium carbonate, titanium oxide, talc, and other coloring pigments can also be added.

The reversible thermochromic microcapsule pigment contained in the doll hair in a dispersed state is an organic compound medium that reversibly causes a color reaction between an electron-donating color-forming organic compound and an electron-accepting compound. A microcapsule containing a reversible thermochromic material containing a component is effective. Examples of the reversible thermochromic material include JP-B-51-35414 and JP-B-51-44706 proposed by the present applicant. Gazette, Japanese Patent Publication No. 1-17154, JP-A-7-186
No. 546, etc., or a thermochromic color memory which discolors with a large hysteresis characteristic described in Japanese Patent Publication No. 4-17154 proposed by the present applicant. Thermochromic material, that is, the shape of the curve plotting the change in coloring density due to temperature change, the temperature is lowered from the color change temperature higher than the color change temperature, and conversely, the temperature is raised from the temperature lower than the color change temperature range A color-changing material of a type that undergoes a color change following a route that is significantly different from that in the case where the temperature changes between a low-temperature color change point and a high-temperature color change point in a normal temperature range. A reversible thermochromic material having a feature of being able to store and retain the state changed by the method described in Japanese Patent Publication No. 1-29898, which has a hysteresis width of 3 ° C. or less with respect to a color density-temperature curve caused by a temperature change. Include thermochromic materials sensitive.

By using the above-mentioned reversible thermochromic material encapsulated in microcapsules, the reversible thermochromic material can be maintained in the same composition under the various use conditions, and can exhibit the same function and effect. A chemically and physically stable pigment can be constituted. The reversible thermochromic microcapsule pigment has a particle size of 1 to 30 μm, preferably 2 to 1 μm.
Those having a range of 5 μm can be applied.

The microcapsule pigment is dispersed in a medium containing a fixing agent and applied as a coloring material such as ink or paint, and forms a reversible thermochromic layer on the filament surface by coating or spraying. Can also.

The microcapsule pigment in the above can be contained in the coating resin layer in an amount of 0.5 to 40% by weight, preferably 1 to 30% by weight. 0.5% by weight
If the amount is less than the above, it is difficult to visualize a vivid thermal discoloration effect,
If it exceeds 40% by weight, it is excessive and may be in a decolored state to cause a residual color.

[0027]

BEST MODE FOR CARRYING OUT THE INVENTION The hair for a doll of the present invention and the dolls using the same will be described more specifically with reference to examples.
The present invention is not limited by this embodiment. In addition, the composition in an Example shows a weight part.

Example 1 (See FIGS. 1 and 2) As the thermoplastic resin (A), 300 mol% of isophthalic acid-modified polybutylene terephthalate (melting point: 168 ° C.) 300
Part, acrylic resin as thermoplastic polymer (B) [trade name: Dianal BR-117, Mitsubishi Rayon Co., Ltd.]
And a glass transition temperature of 35 ° C.], 150 parts of which were mixed and stretched using a general-purpose melt spinning apparatus to obtain a filament 2 having a length of 300 mm and an outer diameter of about 1.0 mm as the doll hair 2. . Using 100 filaments, 5 filaments each were bent from the center, a fixing piece was attached to the bent portion, the fixing piece was embedded in the head of the doll, and the dolls 1 were constructed by combining with the body. .

When the doll hair 2 is immersed in warm water of 39 ° C. and wound around a finger, and then immersed in water of 15 ° C., the hair becomes curled with the same diameter as the finger.
Its shape was retained. Further, even if a brush is used, the hairs do not become entangled with each other, and the hair has excellent drying properties.

Next, the curled doll hair was fixed in a straightened state, heated again with hot water at 39 ° C., and then immersed in water at 15 ° C. to return to the initial straight state.

The shape change can be repeated, and a desired shape can be easily obtained.

Example 2 As the thermoplastic resin (A), a polyamide-based thermoplastic elastomer [trade name: Daiamide E62, Daicel. Huls Co., Ltd.] 400 parts, a polyester resin as a thermoplastic polymer (B) [trade name: Elitel UE-35]
00, manufactured by Unitika Ltd., glass transition point 30 ° C] 300
The parts were mixed and stretched using a general-purpose melt-spinning apparatus to obtain a doll hair 2 having a length of 50 mm and an outer diameter of about 0.3 mm. The filament was used as a doll 1 and 30 hairs were planted on the tail of a horse-shaped animal toy made of a plastic material.

When the hair is wrapped around a finger and held for 5 minutes, the hair becomes corrugated. After maintaining the state for several tens of minutes, the waveform is gradually released, and the original straight state is left for several hours to one day. Was restored. Further, the wavy hair is fixed in a straightened state, and left at 35 ° C. for 5 minutes.
Then, when left at room temperature of 20 ° C., the hair returned to the initial straight state.

Example 3 Preparation of a reversible thermochromic microcapsule pigment 2 parts of 1,2-benz-6-diethylaminofluoran
A reversible thermochromic material comprising 6 parts of 1,1-bis (4-hydroxyphenyl) -n-octane and 50 parts of stearyl caprate is microencapsulated by an epoxy resin / amine interfacial polymerization method to obtain an average particle size of 10 to 10. A 20 μm reversible thermochromic microcapsule pigment was obtained. The obtained pigment was reversibly changed to colorless at about 34 ° C. or higher and pink at about 28 ° C. or lower.

10 parts of the dried and dehydrated microcapsule pigment and 300 parts of the thermoplastic resin composition obtained in Example 1 were mixed and melt-mixed at 180 ° C. in an extruder to obtain thermochromic properties. A thermoplastic resin composition was obtained. The composition changed colorlessly above about 34 ° C. and reversibly pink below 28 ° C.

Next, the thermochromic thermoplastic resin composition is stretched using a general-purpose melt-spinning apparatus, so that the doll hair has a length of 150 mm and an outer diameter of about 1.
A 5 mm filament was obtained.

Using 90 filaments, three filaments were fixed at the ends to three fixed pieces, and the fixed pieces were buried in the head of the doll and combined with the body to form a doll. The pink doll's hair was fixed by sandwiching it in a corrugated board having a period of 1 cm from the top, and immersed in 39 ° C warm water, the hair changed from pink to colorless. When the hair was left at a room temperature of 20 ° C., the hair developed a pink color again, and when the corrugated board was removed, the hair was waved in the same cycle as the corrugated board, and this state was maintained unless an external force was applied.
Also, even if you use a brush, the hair does not get tangled,
It also has excellent hair drying properties.

Next, the wavy hair is fixed in a straightened state, and then immersed again in warm water of 39 ° C., the color changes to colorless. When the hair is left at room temperature, it develops pink color and when the fixing tool is removed, It returned to the initial straight state.

The above-mentioned shape change can be repeated, and a desired shape can be easily obtained.

Example 4 As a sheath material, a polyamide resin [trade name: Rilsan AM]
NO, manufactured by Toray Industries, Inc., melting point 180 ° C.]
50/5 by weight of a saturated polyester resin (trade name: Byron 103, manufactured by Toyobo Co., Ltd., glass transition point: 47 ° C.)
By using a general-purpose composite fiber spinning device and spinning it out, the hair for a doll has a core-sheath structure with a diameter of 0.1.
A multifilament consisting of a 5 mm composite filament was obtained. 200 filaments were implanted in the jaw of a doll made of a plastic material, and the doll was constructed by combining the filament with the body.

The doll's hair is wound around a cylindrical hair curler having an outer diameter of 9 mm, heated with a hair dryer, and then left at room temperature of 35 ° C. or lower. After removing the curler, the hair has the same diameter as the curler. In a state of curling,
The shape was maintained unless an external force was applied.

Next, the curled hair is fixed in a straightened state, heated again with a hair dryer, left at room temperature, and the hair is returned to the initial straight state by removing the fixing tool. Was.

Also, without using a hair dryer, 50
After heating in an oven at ℃, the hair was returned to a straight state by brushing while straightening the hair with a comb or a brush.

The deformation-fixing is performed at about 50 ° C. or more.
Fixation at about 35 ° C. or less could be repeated, and a desired shape could be obtained.

Example 5 As the thermoplastic resin (A), a polyamide-based thermoplastic elastomer [trade name: Daiamide E62, Daicel. Huls Co., Ltd.] 400 parts, a polyester resin as a thermoplastic polymer (B) [trade name: Elitel UE-35]
00, manufactured by Unitika Ltd., glass transition point 30 ° C] 300
The parts were mixed and stretched using a general-purpose melt-spinning apparatus to obtain a doll hair having a length of 250 mm and an outer diameter of about 2.5 mm. One hundred filaments were interposed between metal wires, the metal wires were twisted and the hair was fixed to the metal wire, and the metal wire was fixed to the head of the doll, and a doll was constructed by combining with the body.

The hair was wound around a hair curler having an outer diameter of 9 mm and kept at room temperature of 25 ° C. for 5 minutes. After that, when the curler is removed, the hair becomes curled with the same diameter as the curler.After maintaining the state for several tens of minutes, the curl is gradually released, and the hair is returned to the original straight state by leaving it for several hours to one day. did. In addition, even if a brush was used, the hairs did not become entangled with each other.

After being wound in a curler and heated in an oven at 35 ° C. for 3 minutes, and then allowed to stand at a room temperature of 20 ° C., when the curler is removed, the hair curler is curled with the same diameter as the diameter of the hair curler. As long as no external force was applied, the shape was maintained. Next, the curled hair is fixed in a straightened state, heated again in an oven at 35 ° C., left at room temperature of 20 ° C., and the hair is removed from the initial straight hair by removing the fixture. I returned to the state.

The hair curled at 35 ° C.
When allowed to stand at room temperature of ℃ 30 ° C., it returned to the original straight state spontaneously by leaving for several hours to one day. In addition, even if a brush was used, the hairs did not become entangled with each other.

[0049]

The hair for a doll of the present invention can be easily transformed into a free hair form in a temperature range from room temperature to 70 ° C., preferably in a temperature range from 30 ° C. to 60 ° C., and is deformed by cooling. The hairstyle can be fixed, and if necessary, the fixed hairstyle can be restored to its original state or provided with repetitive endurance such that it can be transformed into another hairstyle. And a doll hair that can be played and a doll using the same.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a doll hair in a straight state according to an embodiment of the present invention and dolls using the same.

FIG. 2 is an explanatory view showing a state in which the doll hair is curled in one embodiment of the doll hair of the present invention and dolls using the same.

FIG. 3 is an explanatory view showing a doll's hair in a straight state according to another embodiment of the doll's hair of the present invention and dolls using the same.

FIG. 4 is an explanatory view showing a waveform of the doll hair of another embodiment of the doll hair of the present invention and the doll using the same.

[Explanation of symbols]

 1 Dolls 2 Hair for dolls

Continued on the front page (51) Int.Cl. ⁶ Identification code FI D02G 3/44 D02G 3/44

Claims (3)

[Claims] 1. A thermoplastic resin (A) and one or two or more thermoplastic polymers (B) having a glass transition temperature in the range of 0 ° C. or more and 70 ° C. or less, wherein (A) / (B) = 95 /
A filament having an outer diameter of 0.2 mm to 3 mm, which is melt-integrated at a ratio of 5 to 20/80 (weight ratio), and has a melting point equal to or higher than the temperature near the glass transition temperature of the thermoplastic polymer (B). A doll hair having a function of being deformable into a shape adapted to the stress by applying an external stress in a temperature range of less than or equal to, and having a function of being fixed to the deformed shape in a temperature range below a glass transition temperature. 2. The doll's hair according to claim 1, wherein said doll's hair contains a reversible thermochromic material or a reversible thermochromic microcapsule pigment in a dispersed state. 3. Dolls obtained by transplanting the doll hair of claim 1 or 2.